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Thread: carb Ice
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Old 23rd January 2012 | 06:32
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achimha
 
Joined: Dec 2011
Posts: 265
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From: Stuttgart, Germany
The bigger the engine, the more likely to encounter I would say (stronger Bernoulli effect). I fly a Cessna TR182 with a turbocharged carbureted O-540 engine and it is very sensitive to carb ice.

Carb ice is easier to detect with a fixed prop because the reduction in RPM is very noticeable. With a constant speed prob, it is less evident. You see a drop in manifold pressure but the airplane will not "feel" different, only when it might be too late.

The TR182 got a carburetor temperatur gauge to address this. Pilot has to make sure it stay outside of the yellow arc.

Personally I think it's not something to be afraid of if you know about it and keep looking for signs. Once turning on the carb heat, it takes about 10-30s to get back to normal in my experience.
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